董箐水电站4号机组筒形阀失步故障处理

Treatments for Cylinder Valve Out-of-step Fault of Unit No.4 in Dongqing Hydropower Station

筒形阀是水轮机的一种新型进水阀门。介绍了董箐水电站4号机组筒形阀故障的特征和分析处理意见,从电气控制部分故障、筒体变形、机械液压控制故障3个方面叙述了4号机组筒形阀失步故障的分析处理过程。

Cylinder valve is a new kind of water valve for hydraulic turbine. The fault characteristics and treatment advices of the cylinder valve of unit No. 4 in Dongqing Hydropower Station are described. The fault analysis and treatment processing is introduced from three aspects, such as electric control, cylinder valve structure and hydraulic control.